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A new method to estimate pulmonary vascular resistance using diastolic pulmonary artery-right ventricular pressure gradients derived from continuous-wave Doppler velocity measurements of pulmonary regurgitation.
Kaga S, Mikami T, Murayama M, Okada K, Masauzi N, Nakabachi M, Nishino H, Yokoyama S, Nishida M, Hayashi T, Murai D, Iwano H, Sakakibara M, Yamada S, Tsutsui H. Kaga S, et al. Among authors: murayama m. Int J Cardiovasc Imaging. 2017 Jan;33(1):31-38. doi: 10.1007/s10554-016-0965-2. Epub 2016 Aug 30. Int J Cardiovasc Imaging. 2017. PMID: 27576320 Free article.
Overestimation by echocardiography of the peak systolic pressure gradient between the right ventricle and right atrium due to tricuspid regurgitation and the usefulness of the early diastolic transpulmonary valve pressure gradient for estimating pulmonary artery pressure.
Hioka T, Kaga S, Mikami T, Okada K, Murayama M, Masauzi N, Nakabachi M, Nishino H, Yokoyama S, Nishida M, Iwano H, Sakakibara M, Yamada S, Tsutsui H. Hioka T, et al. Among authors: murayama m. Heart Vessels. 2017 Jul;32(7):833-842. doi: 10.1007/s00380-016-0929-4. Epub 2016 Dec 20. Heart Vessels. 2017. PMID: 27999948 Free article.
Usefulness of the Continuous-Wave Doppler-Derived Pulmonary Arterial-Right Ventricular Pressure Gradient Just before Atrial Contraction for the Estimation of Pulmonary Arterial Diastolic and Wedge Pressures.
Murayama M, Mikami T, Kaga S, Okada K, Hioka T, Masauzi N, Nakabachi M, Nishino H, Yokoyama S, Nishida M, Iwano H, Sakakibara M, Yamada S, Tsutsui H. Murayama M, et al. Ultrasound Med Biol. 2017 May;43(5):958-966. doi: 10.1016/j.ultrasmedbio.2017.01.006. Epub 2017 Feb 27. Ultrasound Med Biol. 2017. PMID: 28256342 Free article.
Novel echocardiographic method to assess left ventricular chamber stiffness and elevated end-diastolic pressure based on time-velocity integral measurements of pulmonary venous and transmitral flows.
Okada K, Kaga S, Abiko R, Murayama M, Hioka T, Nakabachi M, Yokoyama S, Nishino H, Ichikawa A, Abe A, Nishida M, Asakawa N, Tsujinaga S, Hayashi T, Iwano H, Yamada S, Masauzi N, Mikami T. Okada K, et al. Among authors: murayama m. Eur Heart J Cardiovasc Imaging. 2018 Nov 1;19(11):1260-1267. doi: 10.1093/ehjci/jex305. Eur Heart J Cardiovasc Imaging. 2018. PMID: 29228231 Free article.
Diastolic Intra-Left Ventricular Pressure Difference During Exercise: Strong Determinant and Predictor of Exercise Capacity in Patients With Heart Failure.
Tsujinaga S, Iwano H, Sarashina M, Hayashi T, Murayama M, Ichikawa A, Nakabachi M, Nishino H, Yokoyama S, Fukushima A, Yokota T, Okada K, Kaga S, Vlachos PP, Anzai T. Tsujinaga S, et al. Among authors: murayama m. J Card Fail. 2019 Apr;25(4):268-277. doi: 10.1016/j.cardfail.2019.02.005. Epub 2019 Feb 10. J Card Fail. 2019. PMID: 30753935
Simple and noninvasive method to estimate right ventricular operating stiffness based on echocardiographic pulmonary regurgitant velocity and tricuspid annular plane movement measurements during atrial contraction.
Murayama M, Okada K, Kaga S, Iwano H, Tsujinaga S, Sarashina M, Nakabachi M, Yokoyama S, Nishino H, Nishida M, Shibuya H, Masauzi N, Anzai T, Mikami T. Murayama M, et al. Int J Cardiovasc Imaging. 2019 Oct;35(10):1871-1880. doi: 10.1007/s10554-019-01637-2. Epub 2019 Jun 5. Int J Cardiovasc Imaging. 2019. PMID: 31168679
Mechanism of Early-Diastolic Mitral Regurgitation.
Murayama M, Iwano H, Sarashina M, Anzai T. Murayama M, et al. Circ J. 2020 Oct 23;84(11):2036. doi: 10.1253/circj.CJ-20-0678. Epub 2020 Sep 24. Circ J. 2020. PMID: 32968035 Free article. No abstract available.
716 results